Humidifier user interface



FIG. 1 is a front side view of a steam humidifier with a humidifier userinterface, the steam humidifier housing shown in broken lines; and,

FIG. 2 is an enlarged view of the humidifier user interface of FIG. 1.

The broken lines depict the environment for the claimed design and formno part of the claimed design.

CLAIM The ornamental design for a humidifier user interface, as shown and described. 